Interventions to improve cancer survivorship among Indigenous Peoples and communities: a systematic review with a narrative synthesis

PURPOSE: The purpose of this systematic review is to synthesize the evidence on the types of interventions that have been utilized by Indigenous Peoples living with cancer, and report on their relevance to Indigenous communities and how they align with holistic wellness. METHODS: A systematic review with narrative synthesis was conducted. RESULTS: The search yielded 7995 unique records; 27 studies evaluating 20 interventions were included. The majority of studies were conducted in USA, with five in Australia and one in Peru. Study designs were cross-sectional (n=13); qualitative (n=5); mixed methods (n=4); experimental (n=3); and quasi-experimental (n=2). Relevance to participating Indigenous communities was rated moderate to low. Interventions were diverse in aims, ingredients, and outcomes. Aims involved (1) supporting the healthcare journey, (2) increasing knowledge, (3) providing psychosocial support, and (4) promoting dialogue about cancer. The main ingredients of the interventions were community meetings, patient navigation, arts, and printed/online/audio materials. Participants were predominately female. Eighty-nine percent of studies showed positive influences on the outcomes evaluated. No studies addressed all four dimensions of holistic wellness (physical, mental, social, and spiritual) that are central to Indigenous health in many communities. CONCLUSION: Studies we found represented a small number of Indigenous Nations and Peoples and did not meet relevance standards in their reporting of engagement with Indigenous communities. To improve the cancer survivorship journey, we need interventions that are relevant, culturally safe and effective, and honoring the diverse conceptualizations of health and wellness among Indigenous Peoples around the world. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s00520-021-06216-7.